Home / 2,814.93-3,886.17-1,872.02

Finding the Fourth Proportional to 2,814.93, 3,886.17 and 1,872.02

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Solution

The fourth proportional to 2,814.93, 3,886.17 and 1,872.02 is: 2,584.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.93 : 3,886.17 = 1,872.02 : x
  2. Step 2: Convert to fraction form
    2,814.93/3,886.17 = 1,872.02/x
  3. Step 3: Cross multiply
    2,814.93x = 3,886.17 × 1,872.02
  4. Step 4: Simplify right side
    2,814.93x = 7,274,975.55
  5. Step 5: Solve for x
    x = 7,274,975.55/2,814.93
  6. Step 6: Final answer
    x = 2,584.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.